TY  - JOUR
AU  - Caputo, A.
AU  - Sberna, L.
AU  - Frias, M.
AU  - Blas, D.
AU  - Pani, P.
AU  - Shao, L. J.
AU  - Yan, W. M.
PY  - 2019
DA  - 2019//
TI  - Constraints on millicharged dark matter and axionlike particles from timing of radio waves
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 063515
EP  - 7pp
VL  - 100
IS  - 6
PB  - Amer Physical Soc
AB  - We derive constraints on millicharged dark matter and axionlike particles using pulsar timing and fast radio burst observations. For dark matter particles of charge epsilon e, the constraint from time of arrival (TOA) of waves is epsilon/m(milli) less than or similar to 10(-8) eV(-1), for masses m(milli) greater than or similar to 10(-6) eV. For axionlike particles, the polarization of the signals from pulsars yields a bound in the axial coupling g/ m(a) less than or similar to 10(-13) Gev(-1)/(10(-22) eV),for m(a) less than or similar to 10(-19) eV. Both bounds scale as (rho/rho(dm))(1/2 )for fractions of the total dark matter energy density rho(dm). We make a precise study of these bounds using TOA from several pulsars, FRB 121102, and polarization measurements of PSR J0437 – 4715. Our results rule out a new region of the parameter space for these dark matter models.
SN  - 2470-0010
UR  - https://arxiv.org/abs/1902.02695
UR  - https://doi.org/10.1103/PhysRevD.100.063515
DO  - 10.1103/PhysRevD.100.063515
LA  - English
N1  - WOS:000486646600002
ID  - Caputo_etal2019
ER  -